Printing-machine.



No. 719,324. PAIBNTBD JAN. 27,1903.

s. G. Goss. PRINTING MACHINE.

APPLICATION FILED 00T. 28, 1897.

B0 MODEL.

STaTns lPnTnwT Omron.,

SAMUEL G. GOSS, CF CHICAGO, ILLINOIS, ASSIGNOR TO GOSS PRINTING PRESSCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BFWFIM-UIIOIW forming part of Letters Patent No. 719,324, dated January27, 1903.

Application tiled October 28, 1897. Serial No. 656,074. (No model To allwtont if; may concern: per in web form, arranged t supply Webs t0 Be itknown that I, SAMUEL G. Goss, a citithe upper and lower sets of printingmechan- Zen of the United States, residingin Chicago, ism, respectively.in the county of Cook and State of Illinois, i2 indicates a V-shapedformer which re- 55 have invented certain new and useful Imceives thewebs from the two sets of printing proveniente in lPrinting-lIachinm, ofwhich mechanism, guide rollers 13 14 being prothe following is aspecification. vided for the web ll.

Illy invention relates to apparatus for preindicatesanauxiliaryoroffsetroll which venting offsetting in printing where perfectis suitablymounted in the frame of the press, 6o 1o ing-presses are used. For thispurpose an preferably immediately between the rolls 10 auxiliary web hasheretofore been used in a l1, as shown in the drawing. In thearrangepress having a single set of printing mechment illustrated theauxiliary web 15 passes anism, the web being conducted through theiii-st around a guide-roller 16 to and over the press between the secondimpression-cylin second impression-cylinder 5, lying in con- 65 35 derand the surface printed by the first formtact with the surface of theWeb 10, printed cylinder, so that when the second impression by thefirst form-cylinder 2 as said web passes is given the sur" ice of theweb first' printed between the second form andimpression-cylis inContact with a clean web instead of a inders. It will be noted that atthis time the soiled iinpression-cylinder, thus preserving; uppersurface of the auxiliary web will be in 7o 2o the first impression fromblurring and offsetcontact with the printed surface 0f the web ting. 10.The web lO after passing through the up- My present invention has to dowith providper set of printing mechanism passes to the ing an auxiliaryoiisettingweb for presses former l2, the auxiliary web passing down tohaving a plurality of sets of pri nting mechthe second set of printingmechanism, Where 75 anism. it passes between the lirst and secondimpres- The objects of my invention are to provide sion-cylinders,meanwhile having its under for using a single auxiliary web inconnection surface in contact with the printed surface of with aplurality of printing mechanisms and the web li, thence passing betweenthe secto provide for both surfacesof the auxond form andimpression-cylinders of the 8o 3o iliary web in connection with aplurality of lower set ot' printing mechanism, thence with printingmechanisms, so that an unsoiled snrsaid web around the guide-roller 13.The auxface of the web niay be presented with each iliary web thencepasses aroundaguide-roller printed web. I accomplish these objects as 17to a suitable rewinding apparatus, the web hereinafter specified and asillustrated in the ll passing around the guide-roller 14, thence 85drawing. to the former l2, where it is associated with That which Iregard as new will be set forth the web IO. in the claims. The rewindingapparatus shown in the In the accompanying drawing the figure is drawingconsists of rollers 18 19 and guides a diagrammatic side elevation of aprinting- 20, which receive the mandrel on which the 9o 4o press havingti o sets of printing mechanism roll is wound. The guides 20, by whichthe illustrating my invention. receiving-roll of the ol`fsetweb is heldin po- Referring to the drawing, l indicates the sit-ion, are arrangedto hold said roll with its frame of the press; 2 3, the iirst and secondaxis parallel with the cylinders of the press, form-cylinders of theupper set of printing so that the web proceeds without turning 95mechanism; e 5, the first and second impresover from the printingmechanism to the resion-cylinders ot the upper set of printingceiving-roll, as shown in the drawing. The mechanism; G 7, the first andsecond formrollers 18 19 are driven from-asuitable source cylinders ofthe lower set of printing mechof power and frictionally engage the web,anism, and S E) the iirst and second impresrolling it up, as indicatedby dotted lines. roo 5o sion-cylinders thereof. The speed of therewinding mechanism is thus l0 il indicate ripper and lower rolls ofpaautomaticallyregulated with reference to the speed of the printingmechanism, so that the offset-web is kept taut.

From the above description it will be seen that the two surfacesv of theauxiliary web are used and a single web serves for both sets of printingmechanism, the auxiliary web being finally rewound into a roll.

I have described my improvements in detail, but wish it to be understoodthat I do not limit myself to the specific details of apparatus shown,as my invention includes equivalents thereof.

That which I claim as my invention, and desire to secure by LettersPatent, is-

l. A printing-press having a plurality of sets of web-printingmechanism, an auxiliary web, means for conducting said auxiliary webthrough a plurality of said sets of printing mechanism in contact withthe printed surfaces of the printed webs, and rewinding mechanism, saidrewinding mechanism being arranged to rewind the auxiliary web upon anaxis parallel with the cylinders of the printing mechanism,substantially as described.

2. A printing-press having a plurality of sets of web-printingmechanism, an auxiliary web, means for conducting said auxiliary webthrough a plurality of sets of printing mechanism without turning saidweb, and rewinding mechanism for said auxiliary web, said rewindingmechanism being arranged with its axis parallel with the axes of thecylinders of the printing mechanism, substantially as described.

3. A printing-press having upper and lower sets of web-printingmechanism, an auxiliary web arranged between said sets of printingmechanism, means for conducting said auxiliary web, without turning,through said upper and lower sets of printing mechanism in contact withthe printed surfaces of the printed webs, and rewinding mechanism, saidrewinding mechanism being arranged with its axis parallel with the axesof the cylinders of the printing mechanism, substantially as described.

4. In combination, a plurality of web-printing mechanisms havingparallel cylinders and each adapted for perfecting a separate web ofpaper, an offset-web, mechanism for guiding said offset-web into contactwith each web of paper, an offset-web-receiving roll, mechanism forholding said receiving-roll of said offset-web with its axis parallelwith said cylinders whereby the web proceeds without turning from theprinting mechanism to said receiving-roll, mechanism whereby saidreceiving-roll is driven and means whereby the speed of saidreceiving-roll is adjusted relatively to the speed of the printingmechanism, substantially as described.

5. In combination, a plurality of web-printing mechanisms havingparallel cylinders and each adapted for perfecting a separate web ofpaper, an offset-web, mechanism for guiding said offset-web into contactwith each web of paper, an oset-web-snpply roll, an osetweb-receivingroll and mechanisms for holding said supply and receiving rollssubstantially between two of said mechanisms with their axes parallelwith said cylinders whereby the offset-web proceeds without turning fromsaid supply-roll to said receiving-roll, mechanism whereby saidreceiving-roll is driven and means whereby the speed of saidreceiving-roll is adjusted relatively to the speed of the printingmechanism, substantially as described.

6. In combination, a pluralityof web-printing mechanisms,having parallelcylinders and each adapted for perfecting a single web of paper, anoffset-web, mechanism for guiding said offset-web into contact with eachweb of paper, an offset-web-receiving roll, mechanism whereby saidreceiving-roll is driven and means whereby the speed of saidreceivingroll is adjusted relatively to the speed of said printingmechanism, substantially'as described.

SAMUEL G. GOSS.

Witnesses:

JOHN L. JAcKsoN, HOLMES A. TILDEN.

